Stapler



FIG. 1 is a top, front, right-side perspective view of a stapler showing my new design;

FIG. 2 is a right-side elevation view thereof;

FIG. 3 is a left-side elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom, rear, left side perspective view thereof. 

The ornamental design for a stapler, as shown. 